Coach-hinge



(No Model.)

A. W. WERLE.

COACH HINGE. No. 475,993.

Patented May 31, 1892.

UNITED STATES PATENT OFFICE.

ALBERT WV. \VERLE, OF NEW HAVEN, CONNECTICUT.

COACH-HINGE.

SPECIFICATION forming part of Letters Patent No. 475,993, dated May 31,1892.

Application filed October 19, 1891. Serial No. 409,161. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT W. W'ERLE, of New Haven, in the county of NewHaven and State of Connecticut, have invented a new Improvement inCoach-Hinges; and I do hereby declare the following, when taken inconnection with accompanying drawings and the letters of referencemarked thereomto be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in

Figure 1, a top or plan view of the hinge complete and in the closedposition; Fig. 2, a view of the hinge open, showing the post plate inface view; Fig. 3, a vertical section on line a: wot Fig. 2; Fig. 4, atransverse section of the post-plate cutting on line y y of Fig. 2; Fig.5, atop view of the pivot-plate and door plate hung together butdetached from the post part of the hinge; Fig. (5, a perspective view ofthe pivot-plate detached.

This invention relates to an improvement in that class of hinges whichare adapted to be placed directly between the door and j amb and withinthe thickness of the door, so that no portion of the hinge appears whenthe door is closed, a class of hinges specially adapted for coach-doors,and commonly called concealed hinges.

In the more general construction of this class of hinges a plate issecured to the post or jamb and a similar plate secured to thecorresponding edge of the door. From the plate on the door an armextends through a slot in the jamb or post-plate, the arm hung upon apivot at a distance from the front face of the plate, the said pivotforming a pintle upon which the hinge turns, the arm working through theslot or opening in the jamb-plate as the door swings. To make the pivotas a part of the post or jamb-plate or permanently secure it thereto, itis necessary that the slot through the plate shall be of a heightsufficient for the arm to be raised, so as to set on over the pivot andthen drop to place. Such arrangement makes the slot very much largerthan is actually necessary for the working of the hinge. Again, the slotforms an opening through which water in washing the carriage is liableto pass, which is detrimental to the woodwork of the carriage.

The object of my invention is to overcome these difficulties and withoutmaterially changing the general construction of the hinge; and itconsists in the construction, as hereinafter described, and particularlyrecited in the claims.

A represents the jamb or post-plate, and B the door-plate of the hinge.The plate 13 is constructed with an arm 0, which is of segment shape,the curve from the plate being from the center of the pivot. The curvedarm bends from its inner end to form a straight part D of the arm,substantially parallel with the plane of the plate B, upon which the armis formed. This part D at its extreme end has an opening through itcorresponding to the pivot E, upon which the door or swinging plate 13is to be hung. The plate A is c011- structed with a transverse openingor slot F through its face, through which the arm C may swing, as fromthe position in Fig. l to that seen in Fig. 2 and return. The plate A isconstructed with. a projecting flange G upon its rear side, and in thisflange is a dovetail recess II, which opens below the slot F in theplate. This is preferably made of wedge shape, the sides being undercut,preferably in dovetail form, as seen in Fig. 2. The recess His adaptedto receive a pivotplate I, the plate shown detached in Fig. 6. Thisplate is of shape corresponding to the recess 11, and so that it may beset therein, the undercut shape of the sides serving to hold the plateagainst up-and-down movement. The plate is secured against outwardmovement or withdrawal by means of a screw J, introduced through alongitudinal hole K in the plate and screwed into the flange Gat' theend of the recess, as seen in Fig. 3. The plate I carries upon its innerend the vertical pivot E, which corresponds to the pivot-hole in the armof the door-plate B.

In assembling the parts the pivot-arm is first set upon the pivot of theblock I, as seen in Fig. 5. Then the block and arm are inserted throughthe face of the plate, the block entering the recess and the arm passingin through the slot F, and then the screw J is introduced to draw thepivot-plate I to its home position and firmly secure it therein; and ifat any time it be desired to remove the door from the carriage the screwJ may be withdrawn, and then the door-plate, with the pivot-plate, maybe readily removed, thus greatly facilitating the removal of thecarriage-door when occasion requires. An upwardly-projecting rim M isformed around 5 the edge of the flange G, as seen in Figs. 3 and 4. Itis open above and is of a height only sufficient to prevent water frompassing over the edge of the flange G, so that should water pass throughthe slot F onto the flange G it cannot escape into the wood-work of thecarriage, but must return and escape from the slot by which it enters.

By making the pivot-plate of wedge shape that is, narrowing toward itsinner endit is more easily removed than if it were of equal widththroughout, for the reason that the instant it is started from its homeposition it is loosened throughout its whole extent, and should themetal in the joints between the pivot-plate and the flange becomeoxidized that oxidation will be more readily broken than could be donewere the plate of uniform width throughout.

I claim 1. The combination of the plate A, constructed with a transverseslot F and with an inwardly-projecting flange G, and also constructedwith a recess H in said flange, open ing through the plate A below theslot F, the 30 pivot-plate adapted to be secured in said recess andcarrying a pivot at its inner end, the plate 13, constructed with an armadapted to work through said slot and hung upon the said pivot on thepivot-plate, and the said flange constructed with an upwardly-projectingrim M around its inner edge, substantially as and for the purposedescribed.

2. The combination of the plate A, constructed with a transverse slot Fand with an inwardly-projecting flange G, and also constructed with arecess H in said flange, openin g through the plate A below the slot F,the said recess contracting in width fromits outer end inward, thepivot-plate I of a contracting shape corresponding to the contractingshape of said recess and adapted to set therein, the pivotplateconstructed with a pivot near its inner end, with the plate B,constructed with an arm adapted to work through said slot and hung uponthe said pivot on the pivot-plate, and means, substantially such asdescribed, for securingsaid pivot-plate in its recess, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscrib- 55 .ing witnesses.

ALBERT W. W ERLE.

Witnesses:

FRED. O. EARLE,

LILLIAN D. KELSEY.

